2单片机设计案例.docx
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2单片机设计案例
项目二智能收费系统设计
一、设计内容与要求
智能收费系统要求以89S52单片机为最小系统，外围要有蜂鸣器电路、显示电路、按键键盘控制电路、读卡器等硬件电路，以非接触的射频卡为介质实现消费管理，透支报警，也可以发挥增加其它功能，完成智能收费系统的设计。
二、硬件电路框图
1.硬件电路框图图2-1IC卡硬件电路框图
2.I/O口的分配：
P1.0
串联显示CP
P1.1
——
P1.2
音响
P1.3
——
P1.4
串联显示数据
P1.5
键CP
P1.6
键复位
P1.7
键盘状态
P3.0
RXD（读卡器）
三、软件设计
1.流程图：
如下图所示
2.程序的内存地址分配：
40H
显示窗口号
41H
卡号的低8位
42H
卡号的高8位
43H
现卡内余额的低8位
44H
现卡内余额的高8位
45H
显示本次用款的低8位
46H
显示本次用款的高8位
47H
本次结余的低8位
48H
本次结余的高8位
10H-17H
代码
3.部分参考程序
ORG0000H
LJMPMAIN
ORG0023H
LJMPZD
ORG0300H
MAIN:
MOVSP,#60H
ACALLZHISHU;卡原存
M0:
MOVSP,#60H
LCALLSIC;串口中断始化
M1:
MOV0FH,#00H
ACALLLBB;清10-1F
MOVA,#02H;窗口号
MOV40H,A;40H存窗口号
MOV10H,40H;
MOV11H,#00H;窗口号送10H和11H
ACALLLAAA;显示窗口号
L003:
MOVA,0FH;判卡标志
CJNEA,#33H,L003
ACALLDUKA;卡处理
MOVA,41H;取卡低位乘以2
CLRC
RLCA
MOV82H,A;A内容送DPTR
JCB1;C=1转
MOV83H,#0E0H;A内容送DPH
AJMPB2
B1:
MOV83H,#0E1H;
B2:
MOV4AH,82H
MOV4BH,83H
MOV18H,#0AH
MOVXA,@DPTR;送原存即取余款
MOV43H,A;43和44单元放余款
MOV20H,A;20和21单元为显示
INCDPTR;
MOVXA,@DPTR;
MOV44H,A;
MOV21H,A;
ACALLYASO;压缩16进制数变成压缩10进制数
ACALLL11;压缩--非压缩
ACALLLAAA;10H代码变换后送显示
K1:
ACALLJIAN
JNCK1
LDD8:
MOV30H,A
ACALLLBB
MOVA,30H
SJMPLDD9
LDD4:
ACALLJIAN;扫键
JNCLDD4
LDD9:
ACALLJ3;键译
JCLEE4;功能键
ACALLLCA
MOV10H,A
ACALLLAAA
AJMPLDD4
LEE4:
CJNEA,#0EH,LEEE5;E为取消
LJMPM0
LEEE5:
CJNEA,#0FH,LDD4;F为确认减钱
LJMPFF
HUAN:
MOV09H,A;清显示缓冲区子程序
ACALLLBB
MOVA,09H
CLRF0
RET
LCA:
MOV14H,13H
MOV13H,12H
MOV12H,11H
MOV11H,10H
RET
JIAN:
MOV18H,#0BH
SETBP1.6;扫键子程序
ACALLLAAA5
CLRP1.6
ACALLLAAA5
CLRA
J1:
JNBP1.7,J2
INCA
CLRP1.5
ACALLLAAA5
SETBP1.5
ACALLLAAA5
CJNEA,#10H,J1
CLRC
RET
J2:
ACALLLAAA5
JNBP1.7,J4
SJMPJ1
J4:
JNBP1.7,J4
SETBC
RET
J3:
MOVDPTR,#03C3H;键译
MOVCA,@A+DPTR
CJNEA,#09H,J5
CLRC
RET
J5:
JNCJ6
CLRC
RET
J6:
SETBC
RET
DB00H,01H,02H,03H,04H,07H,0BH,0CH
DB0AH,0DH,0EH,05H,06H,08H,09H,0FH
LAAA5:
MOVR0,#20H
J8:
DJNZR0,J8
RET
FF:
MOVA,11H;处理功能键，非压10进制变压送20H
ANLA,#0FH
SWAPA
MOV20H,A
MOVA,10H
ANLA,#0FH
ADDA,20H
MOV20H,A;低2位在20H
MOVA,13H
ANLA,#0FH
SWAPA
MOV21H,A
MOVA,12H
ANLA,#0FH
ADDA,21H
MOV21H,A;高2位在21H
MOVR0,#21H;调BCD码变16进制子程序入口地址；先放高
MOVR1,#45H
MOVR7,#02H
ACALLLD4;调BCD码变16进制子程序
CLRC
MOVA,43H;（43H）-（45H）=（47H）
SUBBA,45H
MOV47H,A
MOVA,44H;（44H）-（46H）=（48H）
SUBBA,46H
MOV48H,A
JCER0;为负转移
MOV82H,4AH;把结果暂存
MOV83H,4BH
MOVA,47H
MOVX@DPTR,A
INCDPTR
MOVA,48H
MOVX@DPTR,A
MOV20H,47H;显余额
MOV21H,48H
ACALLYASO
ACALLL11
MOV18H,#0CH
ACALLLAAA
CLRP1.2;音响
ACALLDEL2
SETBP1.2
ACALLDEL
AJMPM0
ER0:
MOVA,#11H;-的代码
MOV14H,A
MOV13H,A
MOV12H,A
MOV11H,A
MOV10H,A
ACALLLAAA
CLRP1.2;音响
ACALLDEL
SETBP1.2
ACALLDEL
AJMPM0
RET
DUKA:
ACALLLEE;ASC码变16进制数
ACALLLB;非压16进制变压缩16进制数
MOV20H,34H
MOV21H,33H
MOV41H,34H
MOV42H,33H
ACALLYASO;压缩16进制数变成压缩10进制数
ACALLL11;压缩--非压缩
ACALLDAIM;代码--段码
ACALLXIAN;显示
RET
LBB:
MOVA,#10H;清显示
MOVR0,#10H
MOVR2,#09H
LB1:
MOV@R0,A
INCR0
DJNZR2,LB1
RET
XIAOSH:
MOVA,22H;小数点程序
ORLA,#80H
MOV22H,A
MOVA,27H
ORLA,#00H
MOV27H,A
MOVR0,#24H
ACALLLBB5
MOVR0,#28H
ACALLLBB5
RET
LBB5:
MOVR2,#02H
LB5:
MOVA,@R0
CJNEA,#3FH,LB6
CLRA
MOV@R0,A
DECR0
LB6:
DJNZR2,LB5
RET
LAAA:
MOV15H,#10H
ACALLDAIM
ACALLXIAOSH
ACALLXIAN
RET
SIC:
ANLTMOD,#0FH;中断始化
ORLTMOD,#20H
MOVTH1,#0FDH
MOVTL1,#0FDH
SETBTR1
MOVIE,#90H
MOVSCON,#50H
RET
ZD:
PUSHACC;中断程序
PUSH00H
PUSH02H
MOVR0,#30H
MOVR2,#0BH
LL1:
ACALLLL2
JBF0,LL3
NOP
NOP
MOV@R0,A
INCR0
DJNZR2,LL1
POP02H
POP00H
POPACC
NOP
MOV0FH,#33H
RETI
LL2:
MOV04H,#28H
LL4:
JNBRI,LL6
CLRRI
MOVA,SBUF
CLRF0
RET
LL6:
MOV05H,#0AH
LL5:
DJNZR5,LL5
DJNZR4,LL4
SETBF0
RET
LL3:
POP02H
POP00H
POPACC
RETI
LEE:
MOVR0,#30H;ACS码变16进制数
MOVR2,#0AH
LEE5:
MOVA,@R0
ACALLLE7
MOV@R0,A
INCR0
DJNZR2,LEE5
RET
LE7:
CJNEA,#40H,L13
SJMPLEE7
L13:
JCLEE6
ADDA,#09H
LEE6:
ANLA,#0FH
CLRC
RET
LEE7:
SETBC
RET
LB:
MOVA,30H;非压16进制变压缩16进制数
SWAPA
ADDA,31H
MOV30H,A
MOVA,32H
SWAPA
ADDA,33H
MOV31H,A
NOP
NOP
MOVA,34H
SWAPA
ADDA,35H
MOV32H,A
MOVA,36H
SWAPA
ADDA,37H
MOV33H,A
NOP
NOP
MOVA,38H
SWAPA
ADDA,39H
MOV34H,A
RET
YASO:
MOVR0,#20H;压缩16进制数变成压缩10进制数
MOVR7,#02H
MOVR1,#28H
LCALLLY1
RET
LY1:
MOVA,R0
MOVR5,A
MOVA,R1
MOVR6,A
MOVA,R7
INCA
MOVR3,A
CLRA
LY2:
MOV@R1,A
INCR1
DJNZR3,LY2
MOVA,R7
MOVB,#08H
MULAB
MOVR3,A
LY3:
MOVA,R5
MOVR0,A
MOVA,R7
MOVR2,A
CLRC
LY5:
MOVA,@R0
RLCA
MOV@R0,A
INCR0
DJNZR2,LY5
MOVA,R6
MOVR1,A
MOVA,R7
MOVR2,A
INCR2
LY4:
MOVA,@R1
ADDCA,@R1
DAA
MOV@R1,A
INCR1
DJNZR2,LY4
DJNZR3,LY3
RET
L11:
MOVR1,#10H;压缩10进制数变成非压缩十进制数
MOVR2,#03H
MOVR0,#28H
L12:
MOVA,@R0
ANLA,#0FH
MOV@R1,A
INCR1
MOVA,@R0
SWAPA
ANLA,#0FH
MOV@R1,A
INCR0
INCR1
DJNZR2,L12
RET
DAIM:
MOVR2,#09H;代码变短码
MOVR0,#10H
MOVR1,#20H
L12F:
MOVA,@R0
ADDA,#06H
MOVCA,@A+PC
MOV@R1,A
INCR0
INCR1
DJNZR2,L12F
RET
DB3FH,06H,5BH,4FH,66H,6DH,7DH,07H
DB7FH,6FH,77H,7CH,39H,5EH,79H,71H
DB00H,40H,73H,03H,18H,23H,1CH,3DH,76H,0FH,1EH,38H
XIAN:
MOVR0,#20H;显示
MOVR2,#09H
LP1:
MOVR1,#08H
MOVA,@R0
LP2:
RLCA
MOVP1.4,C
CLRP1.0
SETBP1.0
DJNZR1,LP2
INCR0
DJNZR2,LP1
RET
DEL:
MOVR5,#14H
Y3:
MOVR6,#0FFH
Y2:
MOVR7,#0FFH
Y1:
DJNZR7,Y1
DJNZR6,Y2
DJNZR5,Y3
RET
DEL2:
MOVR5,#02H
Y33:
MOVR6,#0FFH
Y22:
MOVR7,#0FFH
Y11:
DJNZR7,Y11
DJNZR6,Y22
DJNZR5,Y33
RET
LD4:
MOVA,R1;压十变压16进制
MOVR6,A
MOVA,R7
MOVR3,A
CLRA
LD9H:
MOV@R1,A
INCR1
DJNZR3,LD9H
MOVA,R7
MOVR3,A
LDFH:
ACALLLD6H
MOVA,@R0
ANLA,#0F0H
SWAPA
ACALLLD7H
ACALLLD6H
MOVA,@R0
ANLA,#0FH
ACALLLD7H
DECR0
DJNZR3,LDFH
RET
LD6H:
MOVA,R7
MOVR4,A
MOVA,R6
MOVR1,A
CLRC
MOVR2,#00H
LDAH:
MOVA,@R1
MOVB,#0AH
PUSHPSW
MULAB
POPPSW
ADDCA,R2
MOV@R1,A
MOVR2,B
INCR1
DJNZR4,LDAH
RET
LD7H:
MOVR5,A
MOVA,R6
MOVR1,A
MOVA,R7
MOVR4,A
MOVA,R5
ADDA,@R1
MOV@R1,A
INCR1
DECR4
MOVA,R4
JNZLDBH
AJMPLDCH
LDBH:
MOVA,@R1
ADDCA,#00H
MOV@R1,A
INCR1
DJNZR4,LDBH
LDCH:
RET
ZHISHU:
MOVDPTR,#0E004H;制卡数卡号6264地址
MOVR2,#0FFH
LOOP:
MOVA,#10H;金额低位
MOVX@DPTR,A
INCDPTR
MOVA,#27H;金额高位
MOVX@DPTR,A
INCDPTR
DJNZR2,LOOP
RET
END
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